To really work on most engines, you need two torque wrenches, one in Inch lbs and one in ft lbs. Torque wrnches are seldome accurate outside of the middle 60% of their range.
I used to work with a calibration shop ,,, they had this test fixture the could cal torque wrenches , they could set it to whatever and when you pulled on it it detected the click so they could adjust the gauge for accuracy.
The dude that ran the lab had a standing bet that nobody could call the setting 3 times within 5 lbs. He never paid off in ten years and MANY gear heads tried.
Its one of the things that separates an engine builder from guys who build engines...
Just another bench racing opinion....
Dave